Ardell Individual Double-Up Lashes - Short. Enjoy amazing length, volume and thickness with these Ardell Double Individual Black Knot Free Naturals which are lightweight, easy-to-apply and creates the look of alluring eyes. So natural looking that others will thinkyou were born with lush lashes, Ardell offers a variety of lash styles to fit your mood, personality and lifestyle. Ardell Eyelashes are the ultimate in sexy, natural looking, longer lashes. Available in short, medium and long.